Had the originals on my first '08. The 3rd gen that's on there now are the same 6 ply but tread pattern is a bit different. No big deal. Had them up some gnarly Rocky Mountain steep, shale rock, solid rock climbs in the last couple of weeks. Just as happy with performance on these as on the originals. BTW, sold my first '08 to my brother. Those tires are still on it and in great shape.